Pete turns all 'investigator in a flannel shirt' tonight when he finds out Gabby bought flowers the previous day and he sees flowers at the viaduct where Emma died. Laurel steps in before he can ask Gabby too many questions, but is she suspicious herself? It'll take a while to get through this whodunit list, it is Emma after all. Elsewhere, Robert grows worried when Lachlan makes a dark threat, these two have loads in common – why can't they just get along?